baber/WOPTO huggingface dataset:
Patent GB-592022-A (GB)
Title: Current lead-in device for carbon electrodes destined for electrolysis
IPC: F27D11/00
Filed: 1945-04-11
Abstract: 592,022. Furnace electrodes. COMPAGNIE DE PRODUITS CHIMIQUES ET ELECTROMETALLURGIQUES ALAIS, FROGES, & CAMARGUE. April 11, 1945, No. 9013. Convention date, Sept. 24, 1943. [Class 39 (iii)] [Also in Group XXXVI] A lead-in conductor 2 is connected to a carbon electrode 1 by casting metal into cavities disposed so as to form a main mass 3 and several smaller surrounding masses 4. The cavities may be formed by pressing before baking or by machining after, and may be shaped as at 6 to ensure anchorage of the metal. In a modification, the main mass 3 is cast into a removable mould placed on the surface of the electrode.
Patent GB-1277368-A (GB)
Title: Improvements in or relating to arrangements for the control of electric currents in inductive loads
Inventor: GRAHAM REGINALD
IPC: H03K17/12
Filed: 1970-02-25
Abstract: 1277368 Automatic current control ASSOCIATED ELECTRICAL INDUSTRIES Ltd 19 April 1971 [25 Feb 1970] 9017/70 Heading G3R [Also in Division H3] An arrangement for controlling current in an inductive load comprises: a control element 14 connected in series with a transistor 18, which may be a composite transistor, and the inductive load 10; a resistor 20 connected between the  collector and base of transistor 18; and a diode 16. If element 14 is actuated so as to reduce the current through the load 10, transistor 18 becomes reverse biased and the load current decays through resistor 20 and diode 16 without an excessive reverse voltage being developed across element 14. As used in a closed loop control system, the current through the load is sensed by a resistor 22 and compared with a reference signal in an amplifier 24 to produce a control signal for element 14.
Patent GB-953649-A (GB)
Title: Improvements relating to the control of multiple fluid flows in pipes or the like
IPC: F16K41/10
Filed: 1959-03-17
Abstract: 953,649. Valves. K. L. BUTCHER. June 17, 1960 [March 17, 1959], No. 9132/59. Heading F2V. In a method and apparatus for maintaining a constant ratio between two or more branch fluid flows P, R into which a main flow Q is divided, each branch flow passes through a restriction A 1 , A 2 . One branch flow after A 1  passes unrestrictedly at 3, to its outlet R, the outlet pressure p 2  acting on the surface of a column of mercury C connected at 1 to a mercury column A acted upon its surface by the main inlet pressure p 1 . The other branch flow after A 2  exerts a pressure p 3  on the surface of mercury column B, also connected to A, before passing to its outlet Pv through a balanced double-beat valve V, actuated by a float 8 which follows the surface movement of column B. The mercury chambers A, B, C'may be formed as concentric chambers in a single housing. In another embodiment, chamber A is removed, chambers B and C remaining connected via pipes 1, 2. In a further embodiment without mercury and chamber A, valve V is actuated by a bellows acted on either side by the pressures of the branch flows. The ratio between N branch flows may be controlled by N-1 valves. If the medium separating the columns of fluid is less dense than the fluid, the columns may be inverted. Specification 738,773 is referred to.
Patent GB-899165-A (GB)
Title: Improvements in or relating to rotary drum filters
IPC: B01D33/00
Filed: 1961-03-13
Abstract: 899,165. Rotary filters. VENNER, H. A. L. (Schwermaschinenbau K. Liebknecht Magdeburg Veb.). March 13, 1961, No. 9136/61. Class 46. A barrel ring 8, Fig. 2, forming part of the surface of, and preferably located midway between the ends of, an inward flow drum 1, Fig. 1, has ventilation holes 9, numbering at least one for each of the peripheral cells 6 into which the drum is divided by axial strips 2. In the region a, Fig. 1, a belt 10 which at other regions overlies the holes 9, is guided away from the drum by a roller 12 to permit atmospheric air to relieve the vacuum in the relevant cells and thus to facilitate both the discharge to a fixed head 7 of residual filtrate and the removal of the cake by a scraper 11. One or more rollers (not shown) may press on the band 10 to prevent unfiltered liquid from entering the holes 9 as they pass below the liquid level in a trough 13. Radial partitions 15 may be provided.
Patent GB-122118-A (GB)
Title: Improvements in or relating to Tentering Machines.
Inventor: HOEY JOHN JOSEPH
IPC: D06C3/04
Filed: 1918-06-04
Abstract: 122,118. Hoey, J. J. June 4, 1918. Tentering, clips for.-A removable work-blade is rockably mounted in a slot in the movable jaw, its upper edge bearing against the top of the slot and the blade being held in position by a detent clip; the face-plate of the fixed jaw is made reversible side for side and end for end so as to enable it to offer four bearing-surfaces. As shown, the workblade D has a curved projection d adapted to engage the upper part of a corresponding slot formed in the movable jaw C, and is held in position by a spring detent E riveted to the jaw and having a protuberance e<1> engaging a hole d<2> in the plate D at the centre of curvature of the projection d. The face-plate H is arranged out of centre with the lower edge of the blade D, and has double bevelled edges to adapt it to be secured reversibly by a bevel-edged plate F and a beveledged bar G screwed to a ledge b<3>.
Patent GB-1204625-A (GB)
Title: Improvements in or relating to internal shoe-drum brakes
IPC: F16D65/22
Filed: 1968-02-26
Abstract: 1,204,625. Internal shoe-drum brakes; bearings. DEUTSCHE PERROT-BREMSE G.m.b.H. 26 Feb., 1968 [27 Feb., 1967], No. 9200/68. Headings F2A and F2E. In a wedge-operated internal shoe-drum brake adapted to be actuated by fluid-pressure in a cylinder 2a or, alternatively, by a spring accumulator (not shown) or by means of a linkage system, a wedge expander 3 is actuated to spread apart thrust members 6 which engage the brake shoes and balls 8 are interposed between the thrust members and the wedge expander in order to reduce friction. The balls 8 are guided in running grooves 13a, 13 disposed both in the wedge expander 3 and in the thrust members 6 respectively, the cross-section of each running groove being formed by two curved surfaces 13<SP>1</SP>, 13<SP>11</SP>, 13a<SP>1</SP>, 13a<SP>11</SP> which extend to a medium intersection 13b each curve having a radius r<SP>1</SP> which is larger than the radius of curvature r of the curvature of the ball so as to bear against the thrust member 6 and the wedge expander 3 in the manner shown in Fig. 2. The balls 8 are guided in a cage 9 which is loosely retained on the wedge expander by means of two noses 10 (Fig. 3) to prevent the ball 8 from dropping out.
Patent GB-421026-A (GB)
Title: Condensing zinc vapor
IPC: C22B19/18
Filed: 1934-03-23
Abstract: 421,026. Distilling zinc. NEW JERSEY ZINC CO., 160, Front Street, New York, U.S.A.-(Assignees of Handwerk, E. C., and Mahler, G. T. ; Palmerton, Pennsylvania, U.S.A.) March 23, 1934, No. 9207. Convention date, April 17, 1933. [Class 82 (i)] In an apparatus for condensing zinc, the zinc vapour from a vertical retort 10 passes through a tube 12 into the condenser proper 13 provided with a series of downwardly inclined and overlapping baffle plates 14, vertically spaced from one another, the molten zinc flowing down the baffles and collecting in a sump 15. A stack 17 is mounted at a sufficient height above the charging inlet 11 so as to maintain a positive updraught through the chamber 13.
Patent GB-720269-A (GB)
Title: Manufacture of new aroyl-ethylene compounds
Filed: 1951-04-20
Abstract: Alpha - aroyl - beta - trichloromethylethylenes of the formula R-CO-CH=CH.C­Cl3 in which R is an aryl residue containing at least one halogen atom, are obtained by the action of a suitably substituted arylmethylketone with trichloracetaldehyde followed by treatment with a dehydrating agent.  In examples, para - chloracetophenone, 3 : 4-dichloroacetophenone, 2 : 5 - dichloroacetophenone, p - fluoroacetophenone, 2 - methyl-4 - fluoroacetophenone, and 4 - chloro - 1-acetylnaphthalene are condensed with chloral to give the corresponding substituted a -aroyl-b -oxy-b -trichloromethyl ethane compounds, followed by treatment with concentrated sulphuric acid to give the corresponding halogen substituted aroyl - b  - trichloromethylethylene.  Para-iodo and p-bromo-a -benzoyl-b -trichloromethylethylene are obtained similarly.
Patent GB-795488-A (GB)
Title: Improvements in or relating to tractors
IPC: B62D49/02
Filed: 1956-03-26
Abstract: 795,488. Vehicle bodies. HOUGH CO., F. G. March 26, 1956 [June 6, 1955], No. 9336/56. Class 108(1) The body 11 of a crawler type tractor is mounted on longitudinals 10 carrying bearing plates 17 which pivot about transverse pins 44 mounted in plates 43 secured to the tractor chassis so that the body may be lifted to the position shown to allow of routine adjustments to the traction mechanism. In the embodiment shown the tractor carries a shovel 94 and arrangements are described for using the shovelraising ram 96 or the tilting ram 100 for the purpose of elevating the body. The body is normally retained in its lowered position by removable pins which engage the clevises 20 with apertures in the lugs 45 but a strut 113 may be used for safety to retain the body in its raised position during maintenance.
Patent GB-161174-A (GB)
Title: Piston and piston rings
IPC: F16J9/08
Filed: 1921-03-29
Abstract: 161,174. Johnston, H. B. April 5, 1920, [Convention date]. Piston packing.-The piston of an internal-combustion or other engine is packed by a split packing-ring 11, having an inclined surface which is pressed by the fluid pressure against a similar surface on the wall of the packing-ring groove remote from the pressure. The other wall is cut away, to admit the pressure to the packing- ring, and is preferably rounded. The upper face of the packing-ring may be plane, or may diverge outwardly from the lower face. the angle between the two faces being less than 90‹. The width of the wearing surface is preferably less than the radial depth of the ring, and a space is left between the ring and the bottom of the packing- ring groove. The piston of an internal-combustion engine has two rings for packing the combustion chamber and the crank chamber respectively. The packing also centres the piston, and prevents the passage of excess of oil. Reference has been directed by the Comptroller to Specifications 2587/89, and 155,573, (as open to inspection under Sect. 91 (3) (a)).
Patent GB-909290-A (GB)
Title: Multiple-compartment container
IPC: B65D85/32
Filed: 1961-03-15
Abstract: 909,290. Egg cartons. CORMIER, A. March 15, 1961, No. 9412/61. Class 18. An egg carton of the kind formed from a blank providing lid portions 11, side walls 10, bottom walls 8, 9 and a central partition 7 and having rows of aligned slots in which are engaged transverse partitions 15, has slits 27 formed round the upper ends of the slots thereby forming flexible finger portions which engage notches in the transverse partitions. This construction enables the side walls to move outwardly to accommodate large eggs without becoming disengaged from the partitions 15. Flexibility of the bottom walls is provided by slits in the base of each compartment in the form of arcs of concentric circles.
Patent GB-139344-A (GB)
Title: Improvements in or relating to valves
IPC: F22D11/00
Filed: 1919-04-14
Abstract: 139,344. Dickie, W. April 14, 1919. Dash-pots, applicalions of.-A non-return boiler-feed valve 1 is provided with a dashpot centrally arranged in the flow passage, as shown, to prevent concussion of the valve faces. The integral piston 5 works in a chamber 6 the lower wall of which has an aperture 7 communicating with the supply passage 3. Reference has been directed by the Comptroller to Specifications 1886/83, 2547/93, [Class 123, Steam generators], and 15013/10.
Patent GB-552887-A (GB)
Title: Sulphonamide derivatives
IPC: C07D239/69
Filed: 1941-07-25
Abstract: 552,887. Sulphonamido compounds. HAWORTH, E., ROSE, F. L., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. July 25, 1941, No. 9458. [Class 2 (iii)] Sulphonamido-pyrimidines are prepared by reacting a benzenesulphonamido-guanidine having an amino, acylamino or nitro group in the p-position with a #-dicarbonyl compound containing the grouping -CO-CHR-CO- wherein R represents hydrogen or a hydrocarbon radicle. The products are useful therapeutically or for the manufacture of therapeutic compounds. The #-dicarbonyl compounds may be #-diketones, #-ketocarboxylic esters and malonic esters, e.g. acetylacetone, methylacetylacetone, propionylacetone, n-butyrylacetone, dipropionylmethane, hexanoylacetone, heptanoylacetone, dodecanoylacetone, ethyl acetoacetate, ethyl propionylacetate, ethyl benzoylacetate, dimethyl malonate, dipropyl malonate, ethyl oxaloacetate and the ethyl ester of oxalacetone. Examples are given of the preparation of (1) 2-(4<SP>1</SP>-nitrobenzenesulphonamido)-4-methyl-6-hydroxypyrimidine from 4-nitrobenzenesulphonylguanidine and ethyl acetoacetate ; the 41-acetylamino product is similarly prepared ; (2) 2-(4'-nitrobenzenesulphonamido)-4:6-dimethylpyrimidine from 4-nitrobenzenesulphonylguanidine and acetylacetone ; the 4<SP>1</SP>-amino product is similarly prepared from sulphanilylguanidine, and the 4:5:6-trimethyl product using methylacetylacetone ; (3) 2-(4<SP>1</SP>-aminobenzenesulphonamido) - 4 - hydroxy - 6 - carbethoxypyrimidine from sulphanilylguanidine and ethyl oxaloacetate ; (4) 2 - (41 - nitrobenzenesulphonamido) - 4 - methyl 6 - carbethoxypyrimidine from 4 - nitrobenzenesulphonylguanidine and the ethyl ester of oxalacetone ; (5) 2-(4'-nitrobenzenesulphonamido)-4:6-dihydroxypyrimidine from 4-nitrobenzenesulphonylguanidine and diethyl malonate. Dodecanoylacetone is obtained by condensing methyl undecyl ketone with ethyl acetate.
Patent GB-381102-A (GB)
Title: Improvements in or relating to turbine blading
IPC: F01D5/14
Filed: 1932-04-01
Abstract: 381,102. Turbine blades. SHEPHERD, G. R., 2, Norfolk Street, Strand, London.-(Westinghouse Electric & Manufacturing Co. ; East Pittsburg, U.S.A.) April 1, 1932, No. 9462. Drawings to Specification. [Class 110 (iii).] A turbine blade made of nitrogenizable steel is protected from erosion and corrosion by first plating it, as with nickel or tin, then grinding off the plating from that portion which suffers most severe erosion, and subjecting the blade to a nitriding process to harden the surface from which the plating has been removed.
Patent GB-548498-A (GB)
Title: A float-operated electric switch
IPC: H01H36/02
Filed: 1941-07-25
Abstract: 548,498. Electromagnetic switches. CHANCE BROS., & CO., Ltd., and BERTENSHAW, N. W. July 25, 1941, No. 9467. [Class 38 (v)] A float-operated switch comprises an iron bridgecontact i, and a permanent magnet k carried by the float j, which raises the contact-bridge at its lowest level but allows it to fall and bridge mercury contacts c when the liquid level rises. The casing a has three compartments, the middle one only being open to liquid through apertures o, the lowermost having a glass container b for the contacts c, i. The float is guided by arms m engaging columns g enclosing the leads f to the contacts c.
Patent GB-374190-A (GB)
Title: Gas-heated warm water boilers
IPC: F24H9/20
Filed: 1931-03-30
Abstract: 374,190. Controlling air supply in stoves. EBERSOLD, P., 29, Dornacherstrasse, Basle, Switzerland. March 30, 1931, No. 9565. [Class 126.] The gas burner 4 of a water-heater 1 is located at the bottom of the flue 3 just below a gauge ring 5 which limits the cross-sectional area at the base of the flue approximately to the cross section of the burner flame, thereby preventing the entry of an excess of air. The upper end of the flue is provided with a removable cap 8 with an inlet pipe 8<1> and holes 8<2> for the escape of the burnt gases.
Patent GB-1262861-A (GB)
Title: Improvements in rotary offset printing presses
Inventor: SURBROOK LOUIS MATTHEW
IPC: B41F7/12
Filed: 1968-02-28
Abstract: 1,262,861. Printing apparatus. LINOTYPE & MACHINERY Ltd. 27 May, 1969 [28 Feb., 1968], No. 9579/68. Heading B6C. Adjustment of the pressure between two co-operating blanket cylinders 8, 8<1> of a rotary offset perfecting printing machine is by rotation of threaded rods 1, 1<1>, which engage in printing units 6, 6<1>, each of which comprises a plate cylinder, a blanket cylinder and damping means, and move them bodily on frame 5. Each rod has a thread of a first pitch at one of its ends and a thread of the same sense and a second pitch at the other, so that the printing units are relatively displaced by the difference between the pitches with each rotation.
Patent GB-810638-A (GB)
Title: Process for reducing finely divided iron ore
IPC: C21B13/08
Filed: 1957-03-25
Abstract: Iron ore is reduced by feeding finely divided iron ore, having its iron content as Fe2O3, through a cylindrical rotary furnace with its axis inclined at not more than 30 degrees to the horizontal so as to impart a tumbling motion to the ore, and passing a reducing gas consisting substantially of carbon monoxide through the furnace at a velocity insufficient to keep the ore suspended, the temperature in the furnace being maintained between 550 DEG C and 650 DEG C.  The gas is preferably pure carbon monoxide or a mixture of carbon monoxide and not more than 30 per cent of hydrogen, carbon dioxide may be present in such quantity that the exhaust gas does not contain more than 35 per cent and nitrogen may be present to not more than 5 per cent. The ore size may be such that 50 per cent at least passes a 1 mm. screen.  The gas may flow countercurrent to or parallel with the ore and advantage may be taken of the fact that, in parallel flow, the smaller particles are carried through the furnace faster than the larger, thus accommodating reaction time to grain size.  The final metal may contain more than 2 per cent carbon and the reduction may be 75 per cent complete.
Patent GB-666897-A (GB)
Title: Improvements in or relating to sound film equipment
IPC: G11B25/10
Filed: 1949-04-09
Abstract: 666,897. Optical and magnetic sound-film apparatus. SHARPLES, N. A. April 11, 1950. [April 9, 1949] No. 9711/49. Class 40 (ii). In a sound reproducing apparatus for film the shafts of the drive sprocket and scanning drum are extended through the casing of the machine and carry a drive sprocket and stabilizing drum, respectively, for a tape carrying a magnetic sound record. In the embodiment described, a sound and picture projector, Fig. 3, has picture projection drive mechanism 18, an objective 17, and optical sound projection components. consisting of a scanning drum 19, light source 20 and drive sprocket 22. When the film carries an optical sound track the film F passes over a roller 21, but when it has an integral magnetic sound track, the film is passed over a transducer 27 and past an erazing head 28. The shafts 23, 24, Fig. 1 carrying the scanning drum 19 and sprocket 22, respectively, are extended through the casing 1 and carry a stabilizing drum 25 and sprocket 26, respectively, for a separate magnetic sound film 30 which is to be run synchronously with a separate picture film, the transducer 27 and erazing head 28 being unplugged from the picture-film side of the apparatus, and plugged into the opposite side, as shown in Fig. 1. When projecting from sub-standard picture film, the linear velocity may be insufficient for good reproduction from magnetic sound film. Provision is therefore made for simultaneously reproducing a separate magnetic sound film at greater linear velocity by passing the said sound film over larger diameter parts of drums 25, 26 on shafts 23, 24, respectively. The take-off spools 4, 5 are mounted on a forwardly extending bracket 2, while the takeon spools are mounted on a similar rear bracket 3 and are driven through spring-loaded friction discs 9, 10, Fig. 5, by a grooved disc 8 coupled to an electric motor 15 by a belt 16.
Patent GB-255148-A (GB)
Title: Improved toilet and detergent preparations
IPC: A61K8/22
Filed: 1925-04-14
Abstract: 255,148. Pickford, J. S. April 14, 1925. Cleansing-compositions.-Toilet and detergent compositions comprise a base of soap or a higher fatty acid, amyl acetate, and hydrogen peroxide. In the preferred form these are mixed cold and allowed to stand : 3 pints of turpentine, 3 pints of petrol, 1 pint of methylated spirit, 1 pint of amyl acetate, 2 oz. of propyl alcohol. 2 oz. of benzyl alcohol, 1 oz. of spirits of camphor, 2 pints of pure oleic acid, 3 pints of spirit soap, 2 pints of 0.880 ammonia, 2 pints of hydrogen peroxide of 20 vol. strength, and perfume or deodorizer as desired; 6-10 gallons of petrol or benzine are then added and the mixture strained. The product is suitable for cleaning clothes or other articles, or as a dry shampoo. A laundry preparation in the form of flakes is obtained by cold mixing. 4 pints of the above product with 14. 1b. of soap flakes. A face cream or ointment results when 6 lb. of curd soap or flakes, 2 pints of the first, product, 2 pints of water, 2 pints of methylated spirit, and perfume are mixed cold. Addition of precipitated chalk or aluminium silicate to the cream produces a dentifrice or a metal polish.
Patent GB-140622-A (GB)
Title: Improvements relating to roving and other like machines
IPC: D01H7/20
Filed: 1919-04-22
Abstract: 140,622. Gamble, J. April 22, 1919. Capillary action lubricators. - To lubricate a spindle in a roving or like frame, an absorbent band, tape, or pad C looped round the spindle A, is held in yielding contact therewith by a spring c<2> carried by a metal plate secured by a nut c to the collar or builder B. The pad moves up and down the spindle with the collar. In a modification, the band or pad is connected directly to the metal plate, which acts as a spring.
Patent GB-400517-A (GB)
Title: Improvements in rangefinders for photographic purposes
IPC: G01C3/16
Filed: 1933-04-03
Abstract: 400,517. Rangefinders for photographic cameras. ZEISS, C., [Firm of], Carl- Zeiss- Strasse, Jena, Germany. April 3, 1933, No. 9925. Convention date, April 6, 1932. [Classes 97 (i) and 98 (i).] A rangefinder for photographic purposes is provided in its image field with an arrangement of marks so disposed that the instrument can be used to determine not only the distance of a given object plane from the camera objective, but also the locations of planes in front of and behind the said object plane such that images of points in these bounding planes are circles of dispersion of the maximum diameter admissible as a sharp image. The distance between these planes therefore represents the depth of focus of the objective. The Figures show a rangefinder of coincidence type comprising: reflecting prisms 18, 22, objectives 16, a prism 24 for combining the rays from the objectives, and an ocular 27. The prism 18 is fixed and the prism 22 can be rotated about a pivot 21, the range being indicated by a pointer carried by the rotatable prism. Between one of the objectives and the prism 24, glass plates 30, 31 are provided, the facing surfaces of which bear marks 34, 35 respectively, the separation of these marks in the field of view representing the parallactic angle difference between the object for which the instrument is adjusted and objects in front of and behind the said object at the limits of the field which can be regarded as being sharply focused by the objective of the camera. The plate 30 is fixed and the plate 31 can slide in a recess 33 to enable the distance between the marks to be altered when, for example, the aperture of the objective is varied, the depth of focus increasing as the aperture is reduced. The separation of the marks may be controlled automatically in accordance with the aperture by providing the diaphragm ring 41, Fig. 8, with a cam surface 50 bearing on one end of a lever 46, the other end of which is connected to a fork 45 carried by the slide 32 in which the plate 31 is mounted. A rangefinder of stereoscopic type embodying the invention is also described.